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(ModeL) 1 -A. P. GRANGER & A. H. FROST.

Bed Bottom.

No. 238,107. Patented Feb.'22, I881.

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Uivrrnn TATES A'rnsrr triers.

ALVAN P. GRANGER, or WA KEENEY, KANSAS, AND ABEL H. reosr, or oHIcAeo,ILLINOIS.

BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 238,107, dated February22, 1881. Application filed April 16, 1880. (Model) To all whom it mayconcern Be it known that we, ALVAN P. GRANGER, of Wa Keeney, in thecounty of Trego and State of Kansas, and ABEL E. FROST, of Ohicago,Illinois, have invented certain new and useful Improvements inBed-Bottoms; and we do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and

to the letters of reference marked thereon,

which form a part of this specification.

Our invention relates to bed-bottom frames for the support of woven-wireor other fabric stretched from end to end, and more especially I 5 tosuch frames having bent-wood end rails. It

is intended as an improvement, in some respects, on the constructionshown in an application for patent filed of even date herewith by AbelH.Frost, one of the present applicants.

Our invention consists, first, in making the frame of two pieces of bentwood, each forming one end rail and part of both side rails; second,incombining with the bent-wood pieces mentioned metal sockets to receivethe ends of said pieces and hold them in proper relation 5 third, incombining with the said bent-wood pieces and sockets, or metalconnections, means for Separating the ends of the bent pieces. and thuslongitudinally expanding the frame o fourth, in so shaping or directingthe parallel side portions of the bent pieces'that the central sideportions of the frame will be depressed below the plane of thetransverse end portions 5 and, fifth, in the several specific featuresof 3 5 construction hereinafter described, and pointed out in theclaims.

Figure 1 of the drawings is a perspective view ofourimprovedframesupportingawovenwire fabric. Fig. 2 is a fragmentary side ele- 0 vationthereof. Fig. 3 is a side view of the metal socket or connecting-pieceSeen from the inside of the frame, and showing the expanding device.Fig. 4 is a transverse section of the connecting-piece through the lineas w of 5 Fig. 3, and Fig. 5 is a modified form of the bent-wood partsviewed in side elevation and with fabric applied.

A A are twobentpieces of wood, each forming an end rail and half of bothside rails of the frame. The corners are turned over a form having acurve of, say, four to six inch radius. Midway of the frame the bentparts A A meet or proximate, and are held by the metal sockets B B. Whenthe side portions of the parts A A are straight Said sockets arepreferably shaped to hold them in the relatively-inclined positionsshown, whereby the transverse end portions are elevated to properlysupport the fabric 0 above the side rails. Said bent parts may, however,be bent out ofa horizontal plane, as seen at a, Fig. 5, in which casethe sockets may hold their ends in adine, the desired elevation of theend rails being obtained by such offset or bend at a.

The fabric 0 is fastened over the top of the end rails, and its rawedges are concealed by the thin bent strips D D. After securing thefabric to the bent parts A tension is applied to the fabric, and theends of said parts are then set into the opposite ends of thesocketconnections B. To facilitate this operation the lower wall of theconnection B is made relatively short, as indicated in the drawings, thegreater length of the upper wall being given to the connection for theobvious purpose of better resisting the strain of the fabric in thehigher plane, as shown.

For the purpose of extending the frame 1ongitudinally theright-and-left-threaded screw G, having a central solid nut, H, andrunningnuts h h, is inserted within each of the connecting-pieces B, andarranged to bear by the nuts it against the proximating ends of theopposite parts A. The nut H is made accessible through the verticalSlot 1) of the connection 13 on the 8 5 inside of the frame, and tofacilitate working the screw it is located near the inner wall of Saidconnection.

In order to retain the nut H in the central position, opposite the slot1), said nut may be 0 of such size and the screw so located that the nutwill project outward between the walls of the slot; or the lugs orflanges 0 may protrude inward from the edges of the slot to formshoulders to retain the nut in its place. The ends 5 of the parts A arerecessed at i, to admit the nuts h and prevent their turning, as seen inFigs. 2, 4, and 5.

The transverse portions of the parts A A bein g light in comparison withthe end rails :00

heretofore commonly employed, to facilitate bending, the interiortruss-rod, E, and strut or struts F are applied, as shown.

By means of the nuts n it upon the struts the fabric 0 may be centrallyextended to give increased tension, while the general tension of thefabric will be varied by the screws G. Said truss devices are fully setforth and claimed in the aforesaid application of A. H. Frost.

Having thus described our invention, we claim- 1. The frame described,consisting, essentially, of two pieces of bent wood, each forming an endrail and part of both side rails,

and joined at the sides, and having the transverse end portions elevatedabove the side portions, combined with the fabric suspended from the endportions and clear of the side portions, substantially as set forth.

2. The frame described, consisting, essentially, of two pieces of bentwood, each forming an end rail and part of each side rail, and joined atthe sides,in combination with mechanism for separably connecting thebent parts at the sides of the frame, whereby the tension of the fabricmay be varied at will, substantial] y as described.

3. The frame described, consisting, essentially, of two pieces of bentwood, each forming an end rail and part of each side rail, incombination with the contractile fabric 0, secured to the ends of theframes, and the metal socket-connections 13, adapted to receive the endsofthe partsAandpermit their adjustment longitudinally, substantially asdescribed.

4. The frame described, consisting, essentially, of two pieces of bentwood, each forming an end rail and part of each side rail, combined withthe socket-piece 13, formed to receive and support in position the endsof the parts A, relativelyinclined to elevate the transverse endportions and the fabric suspended therefrom above the side portions ofthe frame, substantially as described.

5. The frame described, consisting, essentially, of two pieces of bentwood, each forming an end rail and part of each side rail,-incombination with the parts A, and provided with the connecting-piece Band an expanding-screw, Gr, operating between their ends to separate theparts A within the connection B, substantially as described.

6. The combination, with the parts A and connecting-piece B, having theslot b, of the right-and-left-threaded screw Gr, provided with thecentral nut, H, arranged to remain centrally in place while separatingthe parts A, substantially as described.

7. Combined with the parts A and the elastic fabric 0, secured thereto,as described, the connecting socket-pieces B, having their lower wallsshorter than their upper walls, as and for the purposes set forth.

In testimony that we claim the foregoing as our invention we affix oursignatures in presence of two witnesses.

ALVAN P. GRANGER. ABEL H. FROST.

Witnesses M. E. DAYTON, JEssE 00X, Jr.

